Setting for precious stones and the like.



F. MILHENING.

SETTING FOB PRECIOUS STONES AND THE LIKE.

APPLICATION FILED APR. [3. I916. Lwfimfl Patented Dec. 12,1916.

2 SHEETSSHEET I.

'VIHHHHH F. MILHENING.

SETTING FOR PRECIOUS STONES AND THE LIKE.

APPLICATION FILED APR. 13. I9I6.

mwm Patented Dec.12,1916.

2 SHEETS--SHEET 2.

A TTOR/VE Y FRANK MILE-IENING, OF CHICAGO, ILLINOIS, ASSIG-IJOB T0 3.MILHENING, INQ, OF CHICAGO, ILLINUIFS, A GORPORATIGN OF ILLINOIS.

SETTING FOR PRECIOUS STGNES AND THE LIKE.

WMDW

Specification of Letters Patent.

Patented 12, 191

1 b all whom it may concern:

Be it known that T, FRANK Minimums, a citizen of the United States, anda resident oi. the city of Chicago, county of Cook, and State ofIllinois, (whose post-oflice address is 135 South State street, in saidcity,) have invented a new and useful improvement for Settings forPrecious Stones and the like, of which the following is a specilication.

The object of my invention is to make a gem setting which will securelyhold and properly display any gem or similar article which may be placedtherein. This object is accomplished by my invention, as willhereinafter more particularly appear.

For a more particular description of my invention, reference is to behad to the accompanying drawing, forming a part hereof, in which- Figure1 is a plan View of a die and its stripper, the die being used for theblanking operation, as well as the inside and outside finishingoperations; Fig. 2 is a side elevation of the structure shown in Fig. 1and a blanking cutter for the first operation; Fig. 3 shows a blank;Fig. i is a plan view of a force for partially shaping the blank; Fig. 5is a side elevation of the same; Figs. 6 and 7 are a plan view and aside elevation respectively, of a die for shaping the blank under theinfluence of a force; Figs. 8 and 9 are a plan view and a side elevationrespectively, of a collar for holding the force and die in properrelation; Fig. 10 is a seotional view of these parts when held in properrelation; Figs. 11, 12 and 13 are an inverse plan, a plan and a sideelevation re spectively of the article after it has been shaped as shownin 10; Fig. 14 is a View similar to Fig. 10 showing the next operationin shaping the article; Figs. 15 and 16 are a plan view and a sectionalview respectively, of the device when shaped as shown in Fig. 14:; Fig.17 is a side elevation showing the inside finishing operation; Fig. 18is a sectional view showing the outside finishing operation; and Figs.19 and 20 are a plan view and a side elevation respectively, of thefinished product, or the gem setting device above mentioned.

Throughout the various views of the drawings, similar referencecharacters designate similar parts.

The blank 1, shown in Fig. 3, is made of silver, platinum, or any othersuitable metal, for holding a gem. It is made by placing a strip on adie 2, with an opening 3 of the exact diameter desired, and then theblanking cutter 4t is driven against the sheet metal and forces theblank of the desired diameter through the hole 3 and thereby makes theblank 1 of the kind and character shown.

it will be understood that the die 2 and blanking cutter are placed in asuitable press that the blank 1 will be properly made, and as this pressmay be of any suitable and conventional kind, it is not shown. Inaddition to the hole 3, the die 2 has a second hole 5 with concentricgroove 6 about the same, and a stripper 7 with a recess 8 adapted to beplaced over the opening 5, when the walls of asecond recess 9 engage acap screw 10. Th stripper 7 swings on a pivot 11, which is preferably acap screw, and this stripper is kept the requisite distance from the dieby means of suit able washers 12. Corresponding washers 13 are placedabout the cap screw 10. After the blank 1 is formed, as shown in Fig. 8,it is converted into the shape shown in Figs. 11, 12 and 13 by theapparatus which will now be described. This apparatus consists of theforce l i. a lower die 15 and a collar or guide 16. The force 14: is acylinder 22 with a frustrated cone 17 projecting from its lower surface.This cone 17 is shaped so as to conform to the interior of the ar ticleshown in Figs. 1,1, 12 and 13, and has i flat bottom 1.8 which isadjacent to a conical portion 19 which carries small holes 20 andadjacent to its conical portion 19 is a cylindrical portion 21 which isconnected to the cylindrical body 22 of the force 14: by means of atapering part 23. The diameter of the body 22 of the force 14 is suchthat this body fits snug with a Sliding fit in the upper part of thecenter hole 24 of the collar 16.

The lower di 15 consists essentially of a cylindrical disk 25 with thesame diameter as the lower part of the hole 24: except that its loweredge 26 is not finished true, although its top and bottom faces arefinished true. in the center of this upper face is a circular recess 27made to conform to the projection 17 on the bottom of the force 1% andprovided with suitable holes 28 near its periphery and not opposite theholes 20 in the force 14. The center of the recess 27 1%, wherein theforce 35 is brought to bear has a knockout pin 29 which rises upwardlytherein for a slight distance so as i to limit the inward movement ofthe force 14:.

When the parts are assembled as shown in Fig- 10, and the-blank 1 isplacedon the knock out pin 29, and pressure is applied tothe force 1 1.in a press of the conventional kind, a product results which is shown inF igs. 11 to 13, inclusive; that is,

the disk 1 is transformed into thefrustum ot'a cone 8O witha fin 31 ofsurplus metal at the periphery and a central boss 32.01?

surplus metal at its'lower edge and downwardly extending pins 33 whichextend from the exterior, and upwardly extending pins 3% of a greaterlength which come from the interior and are adapted to hold a jewel. V rj v "The next operation is to place the partially finished article 30,as shown inrFig.

the same as the force 14 and embraces a number'of reflecting ridges 36adjacent to the pins 34. Except for this change, the article remainsunchanged by this operation. The resulting product of the process 7 V17, and thisremoves the boss 32 from the bottom of the jewel holderx30.

The next step-is to remove-the outside fi 31 .andithis is done bywithdrawing the inside finishing cutter 37 and the stripper 7 thenseparates it from the jewel holder 30, andthentheoutside finishingcutter 38 is placed iii-position, as shown inFig. 18, over the opening3in the die 2, and thenthe jewel holder is finished by removing the in32, as shown in Figs. 19 and 20. The 7 outsid finishing eutter 381sgiven substantially the sameexterior shape as the interior finishingcutter 37 or the blanking cutterl.

cave surface of said shell and projections extending from :the concavesurface and exterior surface of the shell.

'2. A gem setting comprising a shell, said shell being substantially thefrustum of a cone, an opening in the center thereof and 131O]GCt1OI1S:extending from the inner and outer surfaces of said shell.

A gem setting comprising a shell, a plurality. of reflecting ridgesformed on the interior or concave surface ofsaid shell and extendingparallel to the outer edge of said shell and a plurality ofprojectionsextendfrom the shell.

1. A gem setting comprising a-shell having a plurality of projections,said shell being substantially the .frustuin of acoue and havingaplurality of annular reflecting ridges arranged onits concave surface.

5. A gem setting comprising a conical shell, the inner orconcave surfaceof said shell having a plurality of annular reflecting ridges extending:parallel to the outer edge ofthe shell and aseries of projectionsextending from both sides of the shell.

Signed at the city-of Chicago, county of Cook, and State of Illinois,this'Gth day o April, 1916.

FRANK MILIEIEN'ING.

Copies =of this patent may be obtainedfor five cents each, by addressingthe Commissioner of Patents, Washington,1). 6.

